A new Lab build on Tomcat 8 (versus Tomcat 7) results in our application logging call & session detail records but no application detail records (VPAPPLOG) are created. No errors are reported. What might be mis-configured?

What is the version of your OD? Could you look for a file called vpapplogclient.log in the app server directory? There maybe some error indicating a problem in there.

Our EPM is 8.0.0.0.1497. There are many instances of the same error in vpapplogclient.log: "[VPAlarmMonitorThread: https://10.57.8.206/axis2/services/VPAppLogService] ERROR - AlarmMonitorThread:EPMWebServicesClientBaseImpl:logAlarmsAxis2() - Caught Exception FAILED with AxisFault faultCode: null error: HttpTransportProperties.Authenticator class cast exception to log entry size: 1 to URL: https://10.57.8.206/axis2/services/VPAppLogService from AE server: aep8testapp First SID: aep8testepm-2021356163723-3 Last SID: aep8testepm-2021356163723-3 NOTE: It could be caused by this EPM is not online or some other network issues.
org.apache.axis2.AxisFault: HttpTransportProperties.Authenticator class cast exception"

What is the OD version? It seems you don't have the Axis 1.7.9 libraries in the Tomcat/lib. Can you check?

Thanks for your patience Wilson. We are currently utilizing: Avaya Orchestration Designer CCXML Version: 7.1 (7.1.0.1202)
Our apache-tomcat-8.5.70/lib contains the following axis2 jar files:
axis2-adb-1.6.2.jar
axis2-adb-codegen-1.6.2.jar
axis2-codegen-1.6.2.jar
axis2-json-1.6.2.jar
axis2-kernel-1.6.2.jar
axis2-saaj-1.6.2.jar
axis2-transport-http-1.6.2.jar
axis2-transport-http-1.7.9.jar
axis2-transport-local-1.6.2.jar
axis2-transport-local-1.7.9.jar

It looks like you have both the OD 7.x and OD 8 runtime libraries. You would need to remove the 1.6.2 jars. Please refer to the OD 8.0 release notes on the old Axis2 library files.

Thank you Wilson. We installed only axis2 1.7.9 libraries and applications detail records are now successfully captured in the VPAPPLOG table.